1899 war between the British Empire and insurgent forces in the New Territories

1899 battle between Philippine forces and the US

1899 battle during the Philippine–American War

March 1899 battle of the Second Samoan Civil War

During the Philippine–American War at Santa Cruz, Laguna, Philippines

1899 treaty between the United Kingdom and Portugal

Labor riot in Idaho, United States

Bolivia-Brazil border war (1899-1903)

Battle in the Philippine-American War

1899 battle of the Philippine–American War

1899 German–Spanish Treaty